Fastener-cementing device



July 9, 1929. c. w. STEELE FASTENER GEMENTING DEVICE Filed Aug. 30. 19282 Sheets-Sheet Patented July 9, 1929.

UNITED STATES PATENT OFFICE.

CHARLES W. STEELE, OF AKRON, OHIO, ASSIGNOR TO THE MILLER RUBBER COM-IPANY, OF AKRON, OHIO, A CORPORATION OF OHIO.

FASTENER-CEMENTING DEVICE.

Application filed. August 30, 1928.

My said invention relates to improvements in means or apparatus forfacilitating the application of cement to the stringers of what areknown as slide or multiple fasteners comprising a plurality ofinterlocking members which arebrought into and out of'engagement by theaction of a slide member, such type of fastener being well known in theart and being now largely used as a closure means for rubber ,overshoesand the like.

In the manufacture of rubber footwear equipped with such closurefasteners, the multiple fastener elements are mounted upon tapes orstrips of fabric usually known as stringers which are thereafterimpregnated with rubber cement so that they may be at tached to orincorporated with the upper of the shoe and be vulcanized thereto.

It is important that no cement should come in contact with the workingparts of the fasteners which would preclude their proper working and itis also desirable to prevent the cement from coming in contact with anyof the metal parts of the fasteners or in too close proximity thereto ascertain ingredients used to effect vulcanization (for example sulphur)tend to attack or discolor the metal and weaken the engagement of theparts with the fabric.

The present invention aims to provide a novel form of apparatus whichwill enable the fabric stringers to be rapidly and effectively coated orimpregnated with cement without any of the detrimental clfects on themetal fastener elements above referred to and the invention includes thenovel construction hereinafter described and defined by the appendedclaims.

The invention is illustrated in the accompanying drawings in which:

Figure 1 is a side elevation of what I at present consider the preferredform of the apparatus.

Fig. 2 is an end view thereof.

Fig. 3 is a cross section on line 3-3 of Fig. 1 showing a set offastener elements and stringers in place, and Fig. 4C is a section 011line 44 of Fig. 1.

Referring by reference characters to this drawing, the device is shownas comprising a narrow substantially box-like structure comprising anumber of strips or plates 1 preferably of aluminum, having the edges ofjuxtaposed plates spaced apart a distance Serial No. 303,099.

equal to the thickness of the fabric stringers. The plates on oppositesides are spaced apart a distance corresponding to the distance betweenthe outer ends or edges of the inter locked fasteners (indicatedconventionally at A) so that when the fabric stringers B are insertededgewise in the space 1 between the juxtaposed plates, the fastenerswill pass down into the interior of the box-like structure and beprotected from the cement when the article is dipped, the stringersfitting so snugly in the slots or spaces as to preclude the passage ofany cement. I

The opposed plates 1 are tied together in spaced relation by shoulderedrivets or studs f and 5' and are connected at their lower ends to theinside faces of a channel member 8 by means of the shouldered rivets 2and 3, the channel member forming the bottom of the box like structure.Filler pieces 6 are provided for closing the ends of the structure, saidfiller plates being secured by rivets 6 The upper ends of the plates 1are extended outwardly or offset to provide space for the slider C andits operating piece D.

Eye members 7 are connected to the end plates to receive hand hooks toenable the operator to readily perform the clipping operation.

In using my improved device, the operator grasps the fabric stringersand slides them down into the slots or spaces between the plates withthe fastener elements within the box and the stringers protruding asshown in Figs. 3 and 4: until the device is loaded whereupon it issubmerged in a bath of rubber cement until the stringers are thoroughlycoated or impregnated, the box like carrier preventing the cement fromcontacting With or injuriously affecting the metal parts. After removalfrom the bath, the stringers may be slid out of the slots and applied tothe shoes or other articles.

The entrance of the stringers into the slots is facilitated by theapproximately V shaped guides 1 formed by the inclined or rounded upperedges of the plates.

Having thus described my invention, what I claim is:

1. Apparatus for dipping stringers carrying multiple fastener elementscomprising a box-like structure having a space to receive the fastenerelements and slots in its walls for receiving the fabric stringers.

2. Apparatus according to claim 1 in which the upper ends of the boxwalls are ofiset to provide space for the slider.

- carrying, multiple fastener elements com prising two sets of parallelplates, the plates of each set being spaced apart a distancecorresponding to the thickness of the stringers,

and means for closing the space between the two sets of plates at thebottom and between the end'plates.

6. Apparatus for dipping fabric stringers carrying multiplefastenerelements comprising two sets of parallel'plates, the plates of each setbeing spaced apart a distance corresponding to the thickness of thestringers, and means for closing the space between the two sets ofplates at the bottom and between the end plates, :1 channel shapedmember to which the lower ends of the plates are secured, and fillerplates secured between the opposed plates at each end.

7. Apparatus for dipping stringers carrying metal fastener elementscomprising a box like structure provided with a plurality of verticalslots extending from the open top to near the bottom, the slots havingsuch width as to just accommodate the stringers and the walls of the boxhaving such a thickness as to prevent the cement from contacting withthe metal parts of the fastener, substantially as described.

' In testimony whereof, I afiix my signature.

CHARLES V. STEELE.

